Agronomists

369 quotes found

"In organisms of all kinds the young are launched upon their careers endowed with a certain amount of biological capital derived from their parents. This varies enormously in amount in different species, but, in all, there has been, before the offspring is able to lead an independent existence, a certain expenditure of nutriment in addition, almost universally, to some expenditure of time or activity, which the parents are induced by their instincts to make for the advantage of their young. Let us consider the reproductive value of these offspring at the moment when this parental expenditure on their behalf has just ceased. If we consider the aggregate of an entire generation of such offspring it is clear that the total reproductive value of the males in this group is exactly equal to the total value of all the females, because each sex must supply half the ancestry of all future generations of the species. From this it follows that the sex ratio will so adjust itself, under the influence of Natural Selection, that the total parental expenditure incurred in respect of children of each sex, shall be equal; for if this were not so and the total expenditure incurred in producing males, for instance, were less than the total expenditure incurred in producing females, then since the total reproductive value of the males is equal to that of the females, it would follow that those parents, the innate tendencies of which caused them to produce males in excess, would, for the same expenditure, produce a greater amount of reproductive value; and in consequence would be the progenitors of a larger fraction of future generations than would parents having a congenital bias towards the production of females. Selection would thus raise the sex-ratio until the expenditure upon males became equal to that upon females."

- Ronald Fisher

0 likesBiologists from EnglandMathematicians from EnglandAgronomistsEugenicistsStatisticians
"Among the friends and patrons of the society at York who paid kind and hospitable attention to those whom the love of science had brought to the meeting, the clergy must not be passed over in silence. They had been the zealous promoters of the meeting; had done much towards facilitating the preliminary arrangements; and exerted themselves by their influence and example to secure to the association that respect and general attention which it deserved, and which at York it amply received. To the church, therefore, the British Association is deeply indebted; and convinced, as I am, that true religion and true science ever lead to the same great end, manifesting and exalting the glory and goodness of the great object of our common worship, I trust that the firmer the association is established, and the more influential it becomes, the more willing and the more efficient an ally it will prove in the cause of religion. While in former times science was said to lead to infidelity, because then it was less profoundly studied, or with less zeal for truth, it is one of the happy characters of the science of this day that it renders men more devout; and it is a pleasing evidence that such is the received opinion, when discerning and educated men — the friends and teachers of religion — of all ranks, step forward not only to patronize science, but to enlist themselves among its cultivators, and to distinguish those who have most successfully advanced it."

- James Finlay Weir Johnston

0 likesAgronomistsChemists from Scotland
"The proprietor should always direct his attention to obtain from his land a gradual increase of produce, or to augment its value continually. The farmer only desires the greatest profit during the continuance of his lease, without caring for the value of the land afterwards. "Whilst the proprietor can content himself with a trifling produce during a few years, in order to attain greater and more durable profit subsequently, the tenant must, on the contrary, endeavour to obtain the greatest produce, even though its amount should be diminished during the latter years of his lease; because the proprietor who wishes to farm on the best system, finds at the same time both pleasure and profit in laying out on his property as much capital as he can spare, whilst the tenant, on the contrary, withdraws as much of his pecuniary resources as possible, to employ it in other ways, or to place it at interest. The improvement of the land constitutes the pleasure of the proprietor, while the mere occupying farmer only thinks of augmenting his income. Thus the longer the lease may be, the more do the interests of the landlord and tenant become identified; the shorter the term, the more conflicting are those interests. With a lease of 24 years, a tenant ought, at least during the first two-thirds of its duration, to follow out the views of the proprietor. But the time will come when he will act on different principles, and endeavour to extract from the land a return in proportion to his outlay at the commencement. To this must be added, that a tenant cannot have the means of laying out so much on the land as the proprietor, even if he wished to do so. The latter must pay the rent, whilst a proprietor anxious to improve can economize something from the net produce to expend on his property. The first may be compared to a merchant who trades on borrowed money; the second to one who speculates with his own funds. The former must first provide for his rent, the latter need only think of extending his speculations."

- Albrecht Thaer

0 likesPeople from GermanyAgronomists
"In the second year of my residence in Gottingen, I entered my name for a course of lectures on practical physics, against the advice of all my friends, but I have never regretted so doing, as there never has been, and probably never will be, a greater man at the university than Doctor Schroder, physician to the king, who gave, at that period, his celebrated lectures on practical physics. Schroder himself was astonished at the step I had taken; but when he perceived that I fully understood him, I became one of his favourite pupils; nor had I the advantage alone of receiving private lessons gratis, but he took me with him in most of his professional visits, where I had all the advantages of his great practice. Thus I caught a putrid fever which was then very prevalent; Schroeder attended me day and night, and giving up all hopes of my recovery, he observed to one of his friends, not thinking that I understood what he said, "The expansion of the sinews increases." "Then," answered I, in a quiet manner, "I shall die in four days, according to such and such a rule of Hippocrates: pray, prepare my father to receive the news of my death." However, immediately after, a sudden turn in the disorder taking place, I soon recovered; not so my memory, which I lost for a time, so that I had forgotten the names of my best friends; my nerves were so completely shaken, that I had no wish to recover. After my recovery, Professor Schroeder being himself attacked with the same fever, requested of his wife that no other physician than myself should attend him; but when he became light-headed, she called in all the physicians of Gottingen, and these gentlemen not agreeing in opinion respecting the treatment of the patient, this great and learned man fell a victim to ignorance and jealousy, April 21, 1772. I cannot think of this celebrated and good man without shedding tears of regret and gratitude."

- Albrecht Thaer

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"After his death I did not attend any more lectures, although I paid for them. Schroeder was succeeded by Ernst Gottfried Baldinger, born in Gross Vargula, near Erfurt, 1738; and descended in a direct line, on his mother's side, from Doctor Martin Luther. He established a dispensary for poor patients, and gave medicine gratia, on condition of his being attended by about thirty pupils. Here it was that I first began to display the knowledge I had gained from my friend, the late Doctor Schroeder; and Baldinger, not seeing me attend his lectures, naturally supposing I was lazy and dull of comprehension, exclaimed, with astonishment, "What will become of this boy?" Whereupon, considering myself insulted by the Doctor, I wished to retire; when he embraced me, and said, good-humouredly, "No, no such a clever young fellow never came under my observation." From this time I became his best friend and daily visitor; I passed whole days and weeks in his valuable and extensive library, and almost in the constant society of his amiable, highly gifted, and accomplished wife; his confidence was so great, that he left the entire direction of his dispensary to me, and even entrusted me with the care of his own family when unwell. Having given up all connexion with my former friends, the students, I selected one Leisewitz, the author of "Julius de Tarent." We sympathised in each other's feelings, and became inseparable. His amiable qualities and inoffensive wit drew around us the best society; but, to our great regret, many of them belonged to a new school of freethinkers, whose principles we endeavoured, by the assistance of the pious Madame Baldinger, to eradicate from their minds; and thus it was thnt Providence brought me over again to the firm belief of the truth of our Divine religion."

- Albrecht Thaer

0 likesPeople from GermanyAgronomists
"Arriving in Berlin, I found myself in my element, and began to breathe freely. Jerusalem and Lessing had given us letters of introduction to the greatest men in Berlin; but they knew us already, Leisewitz as author of "Julius Von Tarent," and myself as author of my Dissertation. We had daily the choice of the first society; covers were laid for us in the first families daily, for dinner as well as supper. Von Zetlitz sent a general invitation that covers were laid for us every day during our stay in Berlin. Most of the time we could spare was divided between physicians and philosophers, of which the latter had the greater share. Spalding, Mendelsohn, Eberhard, Engel, Nicolai, Reichard, and Madame Bamberger, daughter of Doctor Sack, Bishop of Berlin, honoured us with their most sincere friendship. The latter, a highly gifted and accomplished lady, possessed the rare art of spreading over the most abstract hypothesis and theorem the brightest and most charming light; Jerusalem, the father of the ill-fated Werther (see the "Sorrows of Werther," by Goethe), used to send her his works to correct, and she alone was able to console and comfort him, when he was informed of the death of his beloved son. This amiable lady assumes in common life the character of a plain woman, and when at court, as friend of the Queen and the Princess Amalie, she won all hearts by her truly noble man ners and unconstrained courtesy: at court beloved, she was admired, nay, adored in the philosophical clubs. But do not think that here alone we spent all our time; Madame Bamberger knew how to blend study with amusement; she issued frequently cards of invitation to select parties, for suppers and balls, and her house was the point of union of all that was learned, beautiful, and amiable. Thus Berlin became my Paradise. I had the most tempting offers from the Minister of State to stay here; but the illness of my father obliged me, after a stay of three months, to return home. I visited Lessing on my journey back; stayed two days, which were the most interesting of all days I ever remember."

- Albrecht Thaer

0 likesPeople from GermanyAgronomists
"The word " economy" has latterly been used in various senses; the Germans give it a very indefinite signification. Judging from its etymology and original signification, the Greeks seem to have understood by it the establishment and direction of the menage, or domestic arrangements. Xenophon, in his work on economy, treats of domestic management, the reciprocal duties of the members of a family and of those who compose the household; and only incidentally mentions agriculture as having relation to domestic affairs. This word is never applied to agriculture by Xenophon, nor, indeed, by any Greek author; they distinguish it by the terms, georgic geoponic. The Romans give a very extensive and indefinite signification to the word "economy." They understand by it, the best method of attaining the aim and end of some particular thing; or the disposition, plan, and division of some particular work. Thus, Cicero speaks of oeconomia causae, oeconomia orationis; and by this he means the direction of a law process, the arrangement of an harangue. Several German authors use it in this sense when they speak of the oekonomie eines schauspiels, or eines gedichtes, the economy of a play or poem. Authors of other nations have adopted all the significations which the Romans have attached to this word, and understand by it the relation of the various parts of any particular thing to each other and to the whole—that which we are accustomed to term the organization. The word "economy" only acquires a real sense when applied to some particular subject: thus, we hear of "the economy of nature," "the animal economy," and " the economy of the state" spoken of. It is also applied to some particular branch of science or industry; but, in the latter case, the nature of the economy ought to be pointed out, if it is not indicated by the nature of the subject."

- Albrecht Thaer

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"I was an apprentice to a linnen-draper when this king was born, and continued at the trade some years, but the shop being too narrow and short for my large mind, I took leave of my master, but said nothing. Then I lived a country-life for some years; and in the late wars I was a soldier, and sometimes had the honour and misfortune to lodg and dislodg an army. In the year 1G52, I entred upon iron works, and pli'd them several years, and in them times I made it my business to survey the three great rivers of England, and some small ones; and made two navigable, and a third almost compleated. I next studied the great weakness of the rye-lands, and the surfeit it was then under by reason of their long tillage. I did by practick and theorick find out the reason of its defection, as also of its recovery, and applyed the remedy in putting out two books, which were so fitted to the country-man's capacity, that he fell on pell-mell; and I hope, and partly know, that great part of Worcestershire, Glocestershire, Herefordshire, Shropshire, and Staffordshire, have doubled the value of the land by the husbandry discovered to them; see my two books printed by Mr Sawbridg on Ludgate Hill, entitled, Yarranton's Improvement ly Clover, and there thou mayest be further satisfied.* I also for many years served the countreys with the seed, and at last gave them the knowledg of getting it with ease and small trouble; and what I have been doing since, my book tells you at large."

- Andrew Yarranton

0 likesAgronomistsEngineers from England
"The following Character of the late Dr. Hales, may he relied upon in every particular, and it is to he regretted that we have not more particulars concerning his useful Life from the same hand. On Sunday the 4th instant [1761], died, at his parsonage-house at Tedington, universally lamented, in the 83rd year of his age, the Rev. Dr. Stephen Hales, F.R.S., member of the royal academy of sciences at Paris and clerk of the closet to her Royal Highness the Princess Dowager of Wales. If any man might ever be said to have devoted his whole life to the public, to all mankind, it was Dr. Hales. He possessed a native innocence and simplicity of manners, which the characters of other men, and the customs of the world, could never alter; and though he often met with many unworthy objects of his kind and charitable offices, yet they never once lessened his natural and unwearied disposition of doing good and relieving distress. His temper, as well as the powers of his understanding, were happily fitted for the improvement of natural philosophy, possessing, as he did, in an uncommon degree, that industry and patient thinking, which Sir Isaac Newton used modestly to declare, was his own only secret by which he was enabled so fortunately to trace the wonderful analysis of nature. Dr. Hales began his inquiries into natural knowledge very early in life, and he continued it uniformly as his darling amusement, being engaged in experiments until within a few weeks of his death. His industry had this farther excellence, that it was always pointed at the general good of his fellow creatures, agreeable to the almost unlimited benevolence of his heart; and being animated with the success of some of his more useful discoveries, his knowledge appeared to everybody near him to feed his mind with a nourishment which gave him, in the decline of his life, and even in its last stages that vigor and serenity of understanding, and clearness of ideas, which so few possess, even [in] the flower of manhood; and which he used often to say, he valued as the most perfect of human pleasures. ...There are two things in his character, which particularly distinguish him from almost every other man; the first was, that his mind was so habitually bent on acquiring knowledge, that, having what he thought an abundant income, he was solicitous to avoid any farther preferment in the church, lest his time and attention might thereby be diverted from his other favorite and useful occupations. The other feature of his character was no less singular: He could look even upon wicked men, and those who did him unkind offices without any emotion of particular indignation; not for want of discernment or sensibility; but he used to consider them only as those experiments which, upon trial, he found could never be applied to any useful purpose, and which he therefore calmly and dispationately laid aside."

- Stephen Hales

0 likesUniversity of Cambridge facultyAgronomistsBotanists from EnglandChemists from EnglandInventors
"The Yamato spirit is not a tame, tender plant, but a wild—in the sense of natural—growth; it is indigenous to the soil; its accidental qualities it may share with the flowers of other lands, but in its essence it remains the original, spontaneous outgrowth of our clime. But its nativity is not its sole claim to our affection. The refinement and grace of its beauty appeal to our æsthetic sense as no other flower can. We cannot share the admiration of the Europeans for their roses, which lack the simplicity of our flower. Then, too, the thorns that are hidden beneath the sweetness of the rose, the tenacity with which she clings to life, as though loth or afraid to die rather than drop untimely, preferring to rot on her stem; her showy colors and heavy odors—all these are traits so unlike our flower, which carries no dagger or poison under its beauty, which is ever ready to depart life at the call of nature, whose colors are never gorgeous, and whose light fragrance never palls. Beauty of color and of form is limited in its showing; it is a fixed quality of existence, whereas fragrance is volatile, ethereal as the breathing of life. So in all religious ceremonies frankincense and myrrh play a prominent part. There is something spirituelle in redolence. When the delicious perfume of the sakura quickens the morning air, as the sun in its course rises to illumine first the isles of the Far East, few sensations are more serenely exhilarating than to inhale, as it were, the very breath of beauteous day."

- Nitobe Inazō

0 likesPolitical scientists from JapanAgronomistsPoliticians from JapanAcademics from Japan